Question

Q. Explain why 7×11×13+13 and 7×6×5×4×3×2×1+5 are composite number.

Answer 1

Answer:

1. Given no.=13 (7×11+1)

Since this no. has more than 2 factors thus it is a composite no.

2. Given no.=5 (7×6×4×3×2×1+1)

Since this no. has more than 2 factors thus it is a composite no.

Hope it helps...